Bird perch swing



FIG. 1 is an elevational view of a bird perch swing showing our new design taken from the left of FIG. 2 at 45 degrees;

FIG. 2 is a side elevational view thereof;

FIG. 3 is an enlarged top plan view thereof; and,

FIG. 4 is an enlarged bottom plan view thereof.

In FIG. 1, the second and fifth members of the left vertical section, the second member of the right vertical section and the three small circular areas on the horizontal bar are shaded the color teal. 

The ornamental design for the bird perch swing, as shown and described. 